-LRB- CNN -RRB- -- As the stock market opened Friday with a ring of the bell by Mark Zuckerberg , all eyes were on Facebook -- the social media Megalodon he nursed from a dorm-room project to one of Wall Street 's hottest prospects ever .

Facebook , or `` FB '' as it 's now known to investors , may have made amateur analysts on the Web go wild . But on the Nasdaq , it was a less exciting ride -- ending the day at a price pretty much exactly where it began .

Friends may be priceless . But ` friending ' both started and ended the day at just over $ 38 a share .

Facebook 's was the biggest opening ever for a tech company and the third-largest IPO in U.S. history , behind only Visa and General Motors .

On the Web , reactions ran the gamut from deliriously hopeful to harshly negative for the social-media giant 's Wall Street potential .

`` A $ 104 billion market capitalization puts Facebook at more than 100 times its trailing earnings , '' wrote John Constine and Kim-Mai Cutler for technology blog TechCrunch . `` That 's a big multiple to live up to , and it will likely need to add bold new revenue streams to justify the mammoth valuation . ''

And it was n't just the pros weighing in . In fact , it seemed like everyone on the Internet had an opinion .

Business Insider posted a poll -LRB- obviously not scientific -RRB- asking readers where they thought the $ 38 stock would be by the end of the day Friday .

Early Friday , a pessimistic 15 % said under $ 35 . But the biggest cluster of respondents had guessed somewhere between $ 40 and 55 . -LRB- 15 % said $ 40 to 45 , another 13 % said $ 45 to 50 and , yes , yet another 12 % said $ 50-55 -RRB- .

A hopeful 10 % predicted the stock would skyrocket at otherworldly levels , winding up over $ 90 a share .

Facebook 's new billionaires

Results were similar on another site that sprung up , Facebook IPO Day Closing Price . Its graph showed the biggest number of predictions clustering around what ultimately would be an overly optimistic $ 50 mark .

On rival network Twitter , many observers seemed to be rooting against Facebook and its early investors , finding a measure of glee in the fact that the price did n't skyrocket as some had predicted .

`` Facebook stock has already started to tank , '' wrote user Jen Misty -LRB- yes , with a healthy dose of hyperbole -RRB- . `` In my best Nelson voice from Simpsons -- `` HA ! HA ! ''

There was this swipe at youthful startup culture from tweeter Ross Heart : `` Harder ? Keeping $ FB over 38 or trying to get hired at Facebook being over 38 ? ''

And then there was this sports metaphor , which referenced a certain polarizing NBA star .

`` Rooting against Facebook stock price > -LSB- is greater than -RSB- rooting against LeBron , '' wrote a user named Jay Kang .

More sober-minded watchers , however , noted that on Wall Street , when an opening stock sticks close to where it started , it means it was probably priced correctly to begin with .

`` Few hours into trading and Facebook 's stocks maintain a $ 40 value , '' wrote Giuseppe D'Antonio . `` No drop , no frenzy behaviour , no wild fluctuations . Serious matter ! ''

While opinions in the business and tech communities have differed on whether the massive social network is a good investment , analysts have largely been bullish on the stock . There 's been heavy demand , leading Facebook on Wednesday to announce it will sell about 25 % more shares than it had originally planned , bringing its total to 421 million shares .

At CNN content partner Mashable , a blog that got its start focusing exclusively on social media and saw its popularity rise as Facebook 's did , the staff geared up by creating an IPO-inspired playlist on music site Spotify -LRB- which , perhaps not coincidentally , is accessible only through a Facebook account -RRB- .

Making the list ? `` Mo Money , Mo Problems , '' by The Notorious B.I.G. , `` Rich '' by the Yeah Yeah Yeahs , '' `` Money -LRB- That 's What I Want -RRB- by Barrett Strong and `` If I Had $ 1,000,000 '' by Barenaked Ladies , among others .

CNNMoney and CNN 's Brandon Griggs contributed to this report .

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NEW : Facebook stock closed nearly where it opened Friday

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NEW : On rival Twitter , some smirked at lack of a price jump

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Online , almost every financial or tech expert has an opinion

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Facebook on Thursday afternoon set its initial share price at $ 38